Volvo will introduce a system (City Safety System) which will be for Urban driving for 2009.
http://wardsauto.com/ar/volvo_city_safety/Explaination for some of Volvo's new safety features and what they do.
Adaptive Cruise Control (ACC) uses a radar sensor to help the driver maintain the distance to the vehicle in front. ACC should primarily be seen as a comfort-enhancing function, but it contributes at the same time to more controlled driving when the traffic rhythm is uneven.
Collision Warning with Auto Brake Function (CW) helps reduce the risk of frontal impact. If the Volvo approaches another vehicle from behind and the driver does not react, the system alerts the driver with audible and visual signals. If the risk of a collision nonetheless continues to increase despite the warning, the brake support system is activated. Thereafter, if the system senses that a collision is likely to occur, then the brakes are applied up to 50%.
Distance Alert helps keep the time gap to the vehicle in front, also functions when the ACC is disengaged. If the gap becomes shorter than selected, a heads-up display is illuminated to warn driver.
Driver Alert this unique system uses a camera to monitor the cars movements between the lane markings. The system calculates whether you risk losing control of the vehicle. An audible and test message warning are used if the risk is assessed as "high".
Lane Departure Warning is activated if the car should cross one of the road markings without an obvious reason. This system helps to prevent road departure accidents and head-on collisions due to temporary distractions.
Blind Spot Identification System (BLIS) registers if another vehicle is in the offset rear blind spot along either side of the car and the driver is alerted via a visual signal.
Above systems can be disengaged.
Intelligent Driver Information System (IDIS) helps stop the driver being distracted by non-essential information in pressing situations, for instance by delaying incoming phone calls or SMS.